“He who would know the world must first manufacture it.”

There is something splendid about innocence; but what is bad about it, in turn, is that it cannot protect itself very well and is easily seduced.

In all judgements by which we describe anything as beautiful, we allow no one to be of another opinion.

An action, to have moral worth, must be done from duty.

Man desires concord; but nature know better what is good for his species; she desires discord.

From the crooked timber of humanity, a straight board cannot be hewn.

Happiness is not an ideal of reason, but of imagination.

Never wish to see a just cause defended with unjust means.

A great part, perhaps the greatest part, of the business of our reason consists in the analysation of the conceptions which we already possess of objects.

How then is perfection to be sought? Wherein lies our hope? In education, and in nothing else.

By a lie a man throws away, and as it were, annihilates his dignity as a man.

The hand is the visible part of the brain.

Have the courage to use your own reason- That is the motto of enlightenment.

What can I know? What ought I to do? What can I hope?

Dignity is a value that creates irreplaceability.

Give me matter, and I will construct a world out of it!

Enlightenment is man’s emergence from his self-imposed immaturity. Immaturity is the inability to use one’s understanding without guidance from another.

Everything in nature is resurrection.

Only when I began studying chemical engineering at Oregon Agricultural College did I realize that I myself might discover something new about the nature of the world.

Innocence is like a dumb leper who has lost his bell, wandering the world, meaning no harm.

Gratitude bestows reverence, allowing us to encounter everyday epiphanies, those transcendent moments of awe that change forever how we experience life and the world.

There are things I am more interested in than the clone thing. How are they trying to find their place in the world and make sense of their lives? To what extent can they transcend their fate? As time starts to run out, what are the things that really matter?

Man is not only a contributory creature, but a total creature; he does not only make one, but he is all; he is not a piece of the world, but the world itself, and next to the glory of God, the reason why there is a world.

All things considered, there are only two kinds of men in the world: those that stay at home and those that do not.

A civilization which has taken over the world cannot be said to be dying.